/*
 * Copyright 2021 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


import { GoogleAuth } from 'google-auth-library';
import { ChannelCredentials, CallCredentials } from '@grpc/grpc-js';

export function createGoogleDefaultCredentials(): ChannelCredentials {
  const sslCreds = ChannelCredentials.createSsl();
  const googleAuthCreds = CallCredentials.createFromGoogleCredential(
    new GoogleAuth()
  );
  return sslCreds.compose(googleAuthCreds);
}